A Gravel vacuum is a vital Instrument for keeping a clear tank. After a while, debris accumulates while in the gravel, impacting water quality. A gravel vacuum, such as Lee's Gravel Vacuum with Hose, facilitates economical cleansing with out disturbing your fish and decorations. 本回答被题主选为最佳回答 , 对您是否有帮助呢? 本回答被专家选为最佳回答 , 对您是否有帮助呢? https://pearlaquatics.my/sobo-aquarium/